How Mental Health Diagnoses Actually Get Decided (And Why You Should Question Them)

People think a mental health diagnosis means something precise happened.

That someone really understood you Looked at your life. Took their time.

And then landed on something accurate.

That’s the story.

Here’s the reality:

Most diagnoses are decisions made under pressure, using a system that has to fit you into something—whether it really fits or not.

The System Doesn’t Start With You

By the time you sit down, the system already has a list of labels it can use.

That list comes from a manual—the Diagnostic and Statistical Manual of Mental Disorders (DSM).

But over time, it has expanded tremendously.

More categories. More criteria. More ways to qualify.

Not fewer.

So instead of asking:

“Is this person mentally ill?”

The real question becomes:

“What can we reasonably fit them into?”

The DSM Keeps Expanding the Definition of “Disorder”

Every new version adds more.

More diagnoses. Looser thresholds. More overlap between categories.

That means more and more normal human experiences can be captured inside it.

Grief can look like depression. Stress can look like anxiety. Struggling in life can start to look like disorder.

And once something has a label, it stops being seen as a situation—and starts being treated as a condition.

This Is Not a Precise Science at all

There is no blood test.

No brain scan that confirms most diagnoses.

What you have instead is:

• a conversation

• a set of criteria

• a judgment call

Two different clinicians can hear the same story and come to different conclusions.

And both can justify it.

That should tell you something.

Real Example #1

Someone loses a job.

They’re not sleeping. They feel overwhelmed. They’re anxious about money.

They go to a clinic.

Within a short period of time, they leave with:

Major depressive disorder. Generalized anxiety disorder.

Nothing about their situation was false.

But instead of being seen as someone reacting to stress, they’re now someone with disorders.

Real Example #2

Someone has a history of trauma and unstable relationships.

They feel intense emotions. They struggle with trust. They react strongly to conflict.

They get labeled with:

Borderline personality disorder.

Now, everything they do gets filtered through that label.

Not as a person reacting to life—but as a personality problem.

Real Example #3

Someone can’t focus.

They’re distracted. Restless. Struggling to keep up.

They’re diagnosed with ADHD.

But no one seriously looks at:

Sleep. Stress. Environment. Overload.

The label comes faster than the full picture.

There Is Pressure to Come to an Answer

This part matters more than people realize.

A diagnosis is not just about understanding you.

It’s what keeps the system moving.

Without it:

• services don’t start

• treatment plans don’t get approved

• billing doesn’t happen

So there is pressure—quiet but constant—to land somewhere.

Not necessarily the perfect answer.

Just an answer that works.

Once You Get a Diagnosis, It Starts Defining You

This is where it shifts from technical to personal.

Once a label is given:

It goes in your record. It shapes how providers see you. It can follow you across systems.

And over time, people start to internalize it.

“I have this.”"This is who I am.”

Even if it never fully felt right to begin with.

Why It Feels Off (And Why That Matters)

A lot of people feel it.

That moment of:

“This kind of fits… but not really.”

That’s not confusion.

That’s awareness.

Because what you were given might not be a deep understanding of your life.

It might just be the closest available category.

What No One Tells You

No one says this clearly:

A diagnosis is a judgment call.

Not a final truth.

You are allowed to:

Question it. Ask how it was decided. Take time before accepting it. Get another opinion. Walk away from it entirely.

You are not required to build your identity around it.

What This Really Is

A diagnosis is not your full story.

It’s a system’s way of organizing part of your experience.

Sometimes useful.

Almost always limiting.

Sometimes both.

But never complete.

The Line That Matters

Just because something has a clinical name doesn’t mean it fully explains you.

And once you understand how these decisions actually get made, you don’t have to accept them without question.

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References

American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.; DSM-5-TR).

Frances, A. (2013). Saving Normal: An Insider’s Revolt Against Out-of-Control Psychiatric Diagnosis, DSM-5, Big Pharma, and the Medicalization of Ordinary Life. HarperCollins.

Horwitz, A. V., & Wakefield, J. C. (2007). The Loss of Sadness: How Psychiatry Transformed Normal Sorrow Into Depressive Disorder. Oxford University Press.

Kendler, K. S. (2016). The nature of psychiatric disorders. World Psychiatry, 15(1), 5–12.

Rosenhan, D. L. (1973). On being sane in insane places. Science, 179(4070), 250–258.